Apparatus and method for treatment of pulp

Details Apparatus and method for treatment of pulp Apparatus and method for treatment of pulp

D - Textiles, Paper

21

C

D21C 9/06 (2006.01) B01D 33/067 (2006.01) F16J 15/16 (2006.01)

Patent

CA 2701297

The invention relates to a washing apparatus (100) for washing and dewatering of cellulosic pulp, comprising a rotary drum (10) with outer compartments (12) on the drum for the pulp to be washed. The compartments are defined by axial compartment walls (12b) distributed along the perimeter of the drum, a stationary casing (20) surrounding the drum. An annular space (30) is defined between the casing and the drum and wherein the annular space is divided into zones (F, T1, T2, U) by longitudinal seals (40) for formation, washing and output of the pulp. The function of the seals is optimized by devices (60) for force measurement of forces acting on at least one seal with measuring means for measurement of a biasing force of a spring package in the de-vice (60) and measurement of a force acting on a load transmission shaft (40A) of the unit, and extraction means (62) for extraction of a force acting against the seal in a direction away from the drum.

L'invention porte sur un appareil de lavage (100) pour laver et déshumidifier de la pâte cellulosique, comprenant un tambour rotatif (10) avec des compartiments externes (12) sur le tambour pour la pâte devant être lavée. Les compartiments sont définis par des parois de compartiment axiales (12b) réparties le long de la périphérie du tambour, une enceinte fixe (20) entourant le tambour. Un espace annulaire (30) est défini entre l'enceinte et le tambour, et l'espace annulaire est divisé en zones (F, T1, T2, U) par des joints d'étanchéité longitudinaux (40) pour la formation, le lavage et la sortie de la pâte. La fonction des joints d'étanchéité est optimisée par des dispositifs (60) pour la mesure de force des forces agissant sur au moins un joint d'étanchéité, comprenant des moyens pour mesurer de la force de sollicitation d'un bloc ressort dans le dispositif (60) ainsi que la force agissant sur un arbre de transmission de charge (40A) de l'unité, et des moyens d'extraction (62) pour extraire la valeur d'une force agissant sur le joint d'étanchéité dans une direction opposée au tambour.

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